Kieff, J. E., & Casbergue, R. M. (2000). Playful learning and teaching: Integrating play into preschool and primary programs. Allyn and Bacon.
Chicago-Zitierstil (17. Ausg.)Kieff, Judith E., und Renée M. Casbergue. Playful Learning and Teaching: Integrating Play into Preschool and Primary Programs. Boston [u.a.]: Allyn and Bacon, 2000.
MLA-Zitierstil (9. Ausg.)Kieff, Judith E., und Renée M. Casbergue. Playful Learning and Teaching: Integrating Play into Preschool and Primary Programs. Allyn and Bacon, 2000.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.